Water heater



April 15, 1930.

w. J. SIMS 1,755,082

WATER HEATER Filed March 8, 1928 Fig. 2 24 Inventor:

William J.Sims,

His ALborne Patented Apr. 15, 1930 UNITED STATES PATENT OFFICE WILLIAM J'. SIMS, OF IVER, ENGLAND, ASSIGNOR TO GENERAL ELECTRIC COMPANY, OF NEW YORK, N. Y.

WATER HEATER Application filed March 8, 1928, Serial No. 260,171, and in Great Britain March 11, 1927.

My invention relates to improved heaters and particularly to water heaters working a substantially atmospheric pressure. In heaters of this type the water is heated by convection and the hot water is usually withdrawn by an overflow from the upper surface of the water in the container. It is, therefore, desirable to introduce the cold supply at the bottom of the container and with as little disturbance of the liquid as possible. Sometimes to accomplish this, a vertical channel is formed against one wall of the container, open at the bottom end, and water drops into this channel from a pipe passing through a hole in the top cover.

It is an object of my invention to dispense with the opening in the cover for an inlet pipe, thus making the container more dust proof, and to place the inlet pipe leading to 29 the upper part of the container within the container itself. In this way a smooth cylindrical container having no external projections can be produced, such a container lending itself better to external finishes, such as white enameling.

For a more complete understanding reference should be had to the accompanying drawing in which Fig. 1 is a sectional elevation of a Water heater embodying my inven- 3 tion and Fig. 2 is an enlarged sectional view of the upper end of the inlet conduit.

Referring to the drawing, a suitable container or tank 10 is formed of side walls 11,

top cover 12 and a bottom or base plate 13.

The water normally fills the tank from the base plate 13 to a level substantially at the top of the wall 11. The top cover 12 is provided with a dust proof vent 14. A pipe or conduit 16 for the outflow of the heated Water extends from a point slightly below the normal water level through the base plate 13.

Directly over and a slight distance from the top of the outflow pipe 16 is a baffle plate 17.

An inlet pipe 18 enters the tank through the base plate 13 and terminates in the upper region of the tank and extends preferably to a point slightly above the normal water level.

Surrounding this inlet pipe and spaced therefrom is a tube 19. This tube 19 is secured to the base plate 13 by suitable means 20 and has an opening 21 near the base plate. A cap member 22 covers the top of the tube 19 and this cap member contains vent openings 23 and has a depending baflle member 24. This baffie member surrounds the upper end of the inlet conduit 18 and extends slightly below the normal water level of the tank.

The cold water entering the container 10 flows upwardly through the conduit 18 and is then deflected downwardly by the baflie 24. The cold water then flows downwardly through tube 19 and out through the opening 21, where it mixes with the water in the tank. The water which has been heated enters the conduit 16 at the top and flows down wardly and out to the place of use. Due to the cap-shaped baiile member 24 and tube 19 the cold water is caused to enter the tank with substantially no splashing and since the inlet conduit enters through the base plate 13 the top cover plate 12 remains whole and a heater having a more uniform outer surface is thus provided.

It is to be understood that heating means are provided to be located preferably below the base plate 13. The heating means may be gas or electric or any other suitable type.

What I claim as new and desire to secure by Letters Patent of the United States is:

1. In a liquid heater, a liquid container provided with a normally open vent at the top, an inlet conduit entering said container at the bottom thereof and extending to a point above the normal liquid level, an outlet conduit passing through the bottom of said container and means cooperating with said inlet conduit for passing the inflowing liquid to the lower part of said container.

2. In a water heater, an elongated vertical tank provided with a normally open vent at the top, an inlet conduit passing through the base of said tank and extending to a point near the top thereof, outlet means for the water in said tank and means cooperating with said inlet conduit for causing inflowing water to pass to the lower part of said tank, said last named means comprising a tube surrounding said inlet conduit and having an opening near the base of said tank.

3. A water heater comprising an elongated Vertical tank provided with a normally open vent at the top, heating means therefor, an inlet conduit passing through the base of said tank and extending to a point near the top thereof, outlet means for the water in said tank, and means cooperating with said inlet conduit for causing inflowing water to pass to the lower part of said tank, said last named means comprising a tube surrounding said inlet conduit and having vent openings and baflle means at the top thereof and an openinglnear the base of said tank.

In witness w ereof, I have hereunto set my hand this 23rd day of February, 1928.

WILLIAM J. SIMS. 

